口算：
25×4= 360÷36= 0.3÷100= 120×6= 58﹣58=
1000×0.013= 48+32= 84÷4= 480÷60= 3﹣1.4=
0÷78= 2.5+0.9= 8.76﹣4.27= 45×20= 420+28=
101×28= 8×9+8= 125×7×8= 7×5÷7×5= 10﹣2.3﹣2.7=
口算：
25×4= 360÷36= 0.3÷100= 120×6= 58﹣58=
1000×0.013= 48+32= 84÷4= 480÷60= 3﹣1.4=
0÷78= 2.5+0.9= 8.76﹣4.27= 45×20= 420+28=
101×28= 8×9+8= 125×7×8= 7×5÷7×5= 10﹣2.3﹣2.7=
×
”，并涂上颜色．
×1.8=
=
= 7.8÷0.01=
×
=
×1.2= 32×1
=
×
÷
×
=
+
）=
+21÷56= 1252﹣998=
×
=
﹣
= 52=
+
= 100÷0.01=
×
×
= 28﹣
﹣
= 13×4÷13×4= 2÷1
+2×
﹣
）×30=
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